Cruise.com via ShermansCruise offers a Carnival Cruise 3-Night Bahamas Cruise for Two, with prices starting from $428. (On the ShermansCruise landing page, scroll down and click "Book Now" next to the October 29 sailing date.) That's the lowest price we could find for such a cruise by $51. This roundtrip cruise aboard the Carnival Victory departs from Miami, FL, on October 29. Book this travel deal by September 30.